The Serta Perfect Sleeper Cobalt Calm is an ultra-plush 15-inch pillow-top mattress designed for a restorative sleep experience. It features an innerspring design with a three-zoned 850-coil density system for targeted lower back and hip support. The mattress incorporates advanced cooling technologies, including CoolFeel™ fabric and two layers of Cool Twist® Gel memory foam to enhance airflow and heat dissipation. Additional comfort is provided by Deep Reaction™ memory foam, a PillowSoft® Aire foam layer, and conforming Quilt-loft® memory foam. This CertiPUR-US® certified mattress is ideal for side, stomach, and back sleepers, offering benefits such as back pain relief, reduced motion transfer, and hypoallergenic properties.
- Plush comfort level
- Pillow top
- 1,160 coils
- PerfectPure Fiber
- PillowSoft Aire
- PillowSoft Foam
- Cool Twist Gel Memory Foam
- Cushion Quilt Foam
- Support Foam
- 850 3 Zoned Coil System
Details
- Category
- Mattresses
- Mattress Features
- Adjustable base compatibility, Anti-microbial, Cooling function, Edge support, Hypoallergenic, Motion isolation
- Sleep Position Suitability
- Back sleeper, Side sleeper, Stomach sleeper
- Pattern
- Swirl, Solid
- Coil System Type
- Pocket coils
- Recommended Sleep Position
- Back, Stomach
- Mattress Top Type
- Pillow top
- Memory Foam Infusion Material
- Cooling gel
- Innerspring Coil Type
- Pocket (individually wrapped)
- Bedding Size
- Twin, Twin XL
- Materials
- memory foam, gel, innerspring
- Age
- Adult
Questions & answers
- How much does it cost, and where can I buy it?
- This Serta mattress is sold by 2 retailers from $832.99 to $1,140.00. The lowest in-stock price is $832.99. 1 of 2 listings are on sale (up to 31% off). Available at cityhome.com and qvc.com.
- Is it in stock?
- Yes. It's in stock at 1 of 2 retailers.
- What are the key features?
- Key features include Plush comfort level, Pillow top, 1,160 coils, PerfectPure Fiber, and PillowSoft Aire.
- What is it made of?
- It's made of memory foam, gel, and innerspring.
- What's its coil system type?
- Its coil system type is pocket coils.
- What mattress features options are available?
- Its mattress features options are adjustable base compatibility, anti-microbial, cooling function, edge support, hypoallergenic, and motion isolation.